Home / 640,975,500.56-884,546,190.60-347,620,068.56

Finding the Fourth Proportional to 640,975,500.56, 884,546,190.60 and 347,620,068.56

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Solution

The fourth proportional to 640,975,500.56, 884,546,190.60 and 347,620,068.56 is: 479,715,694.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,975,500.56 : 884,546,190.60 = 347,620,068.56 : x
  2. Step 2: Convert to fraction form
    640,975,500.56/884,546,190.60 = 347,620,068.56/x
  3. Step 3: Cross multiply
    640,975,500.56x = 884,546,190.60 × 347,620,068.56
  4. Step 4: Simplify right side
    640,975,500.56x = 307,486,007,420,858,816
  5. Step 5: Solve for x
    x = 307,486,007,420,858,816/640,975,500.56
  6. Step 6: Final answer
    x = 479,715,694.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.